Pislaru SV, et al. Aortic stenosis and noncardiac surgery: managing the risk. Curr Probl Cardiol. 2015 Nov;40(11):483-503.
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“In summary, the mortality risk at contemporary noncardiac surgery has followed the general trend of decreasing surgical mortality rate, and is currently at 1.5%-4% for elective procedures, significantly lower than those in the early reports (Fig 1). Presence of severe AS does not result in increased mortality rates, but rather in excess cardiovascular morbidity (most notably myocardial infarction  or new or worsening heart failure ). Symptomatic patients have worse outcomes.” (pg. 488) Continue reading